Improvement in bands for booms and gaffs



.id-titled (Sta-tee- @atwt djijiire DAVID DRYBURGH, OF PHILADELPHIA, PENNSYLVANIA.l

Lette/rs .Patent No. 95,442, dated October 5, 1869; antedated September 20, 1869.

IMPRO'V'EIVIENT IN'BANQDS FOR BOOMS AND G-AFIS.

The Schedule referred to in these Lettera Patent and making parl: oi' the same.

To all whom it may concern:

Be it known thatl I, DAVID DRYBURGH, of the city of' Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented a new and useful Improvement in Bands for Booms and Gaft's g and Ido hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

rI he object of my invention is to secure sails to the ends of booms or gais, in an effectual manner, at a saving of labor; also, to prevent the chafing and wearing away of the gai or boom.

In the present method of securing the end of the sail to the gai or boom, the sail is hauled out to the proper position, and secured by means of a band. To accomplish this, the band has to be carried out to the end ot' the ga or boom, andthere secured, thus requiring the labor of two or three men to get it into position.

This is objectionable, on account of the liability of losing the band, also the danger incurred, and the number of hands required in attaching it.

igure l is a top view of my band for booms and ga s.

Figure 2 is a detached view, showing, thesaddle of same.

Figure 3 i's a detached view of the bolt and nut used for securing the ends 0f the band.

Figure 4 isa view of my band attached to a sail,

lshowing it (the band) as it appears when the sail is being set.

To enable those skilled inthe art to make and use my invention, I will now proceedv to describe its construction and operation.

' The baud is made circular in form and in two parts,

A and B. Said part-s are connected' by means of a semicircular in form and roundedoff, so as to form a hook or staple, S.

On the inner side ot' the part A, and made to conkeys k and k', passing through the openings made in the lugs.

- Passing through, or hooked into the staple S, and prevented from dropping out by means of the saddle D, is a heart-shaped clew, G,` of ordinary construction.

The operation of the band is as follows The clew O is secured to the end of the sail, as shown in ig.4the band sliding along the boom or gatf as the'sail-is being drawn out. W'hen the'sail is set, the band is closed around the boom, where it is heldrmly by means of the bolt b and nut n, thus requiring only one man out on the boom or gan".

It will be obvious that the form of the saddle will prevent' the clew C from touching on o1' chafng the gaif or boom, when the sail is slackened up.

Having thus described my invention, its construction and operation,

What I claim, and desire to secure by Letters Patent of the United States, is

The combination and arrangement of the parts A and B, saddle D, provided with lugs land l', keys k and k', and clewO, so as to operate substantially in the manner and for the purpose set forth.

In testimony whereof, I `have hereunto set my hand, in the presence of two subseiibing witnesses.

DAVID DRYBURGH.

Witnesses: A

GHAnLnsH. EVANS, ISAAC R. OAKFORD. 

